Product Description
Vintage 1969 Marshall JMP 50 Metal Panel Valve Amplifier
Vintage 1969 Marshall JMP 50 Metal Panel Valve Amplifier
Where can you go where Marshall is not a household brand? They are built to the highest quality and are extremely collectable in the modern market year on year.
This particular model is the extremely rare crossover period (1969), where Marshall changed the panels from plexiglass. The inside circuit, as pictured, is the same beautiful circuit that made these “Plexi 50s” so sought after! This means you can get that classic Marshall sound at low volumes! This is no exception to the rarity and build-quality of these favoured early JMP’s.
What is even rarer about this particular amplifier is the possible provenance. This amplifier has ‘Randy’ stencilled to the bottom. We all know a particular Randy who favoured Marshall amplifiers! Could this be his first Marshall amplifier prior to his 100w?
Product Details
Serial: 5408A
Watts: 50 watts
Valves: 2x EL34s + 3x ECC83’s
Transformers: Original
Date Code: B9N (1969)
Cosmetic Inspection
This is in great condition, with nothing significant to report, except a few scrapes to the back, as pictured. We’ve owned a few of these in our past and this is by far the nicest example.
Originality
We believe all the parts that matter are original. This has recently undergone a service, with a few small components changed. These are pictured and will be included in the final sale.
Service History
We pride ourselves on our inspections and the professional service of each amplifier, making this ready to plug in and play anywhere within the UK.
Summary
One of the best quality amplifiers you’ll find. These exceed the quality of most new amplifiers and are always on the increase in regards to collectability.
Come along and have a play!




